Jay Lee Chor Yow's answer to Alicia's Secondary 4 A Maths Singapore question.

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Jay Lee Chor Yow
Jay Lee Chor Yow's answer
43 answers (Tutor Details)
Angle QBA = Angle RBC (vertically opp)
Angle QAB = Angle PAB = Angle RBC (congruent)
Since Angle QAB = Angle QBA
Triangle ABQ is isosceles.